Whenever I record with my microphone, I get this constant beep sound on the background. It appears only when I turn volume up, so it is not very loud, but its noticable and pretty annoying.
Because it is constant sound, I thought it should be possible to filter just that one frequency, but I have absolutely no idea how to do it.
You might be able to use something like Adobe Audition to do frequency space editing and remove the beep. This lets you edit at the frequency level so you could mute just the part of the spectrum that the beep is on.
Are you using the built-in microphone jack? If so, I suspect that the beep is coming from your hard drive and a poorly designed motherboard layout. You might get a USB audio device, even one of the small "gumstick" devices. This will isolate your audio from the electronics inside the computer and should cause it to go away.
If I'm understanding your question right, the free Audacity sound editor should be able to do what you want. I also agree with Steve Rowe's suggestion that a better mike is the best solution.
I had a similar problem. My beeping was from the metronome being on. Its at the bottom of the screen to the right of the tempo. Click it to off. Hope this helps
